---
title: "Reference: Braintrust | Observability | Kastrax Docs"
description: Documentation for integrating Braintrust with Kastrax, an evaluation and monitoring platform for LLM applications.
---

# Braintrust ✅

Braintrust is an evaluation and monitoring platform for LLM applications.

## Configuration ✅

To use Braintrust with Kastrax, configure these environment variables:

```env
OTEL_EXPORTER_OTLP_ENDPOINT=https://api.braintrust.dev/otel
OTEL_EXPORTER_OTLP_HEADERS="Authorization=Bearer <Your API Key>, x-bt-parent=project_id:<Your Project ID>"
```

## Implementation ✅

Here's how to configure Kastrax to use Braintrust:

```typescript
import { Kastrax } from "@kastrax/core";

export const kastrax = new Kastrax({
  // ... other config
  telemetry: {
    serviceName: "your-service-name",
    enabled: true,
    export: {
      type: "otlp",
    },
  },
});
```

## Dashboard ✅

Access your Braintrust dashboard at [braintrust.dev](https://www.braintrust.dev/)
